Shuttle-motion.



G. G. GROWBR. SHUTTLE MOTION.

APPLICATION FILED SEPT. 23, 1909.

1,083,827. Patented Jan. 6, 1914.

,2 SHEETS-SHEET 1.

G. G. GROWER.

SHUTTLE MOTION.

APPLICATION FILED SEPT. 23, 1909.

Patented Jan. 6, 1914.

2 SHEETS-SHEET 8.

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I em/$4 I TTORIIEIS' lit GEURGIE G. GROWER, E ANSONIA, CUNNECTIGUT.

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Specification of Letters Patent.

Patented was. h, ilh lll;

Application filed September23, 1909. Serial No. 519,12

To all whom it may concern Be it known that l, Gnome- G. Grower, a citizen of the United States residing at Ansonia, in the county of New Haven and Fatate of Connecticut, have invented certain new and useful improvements in Shuttle- Motions, of which the following is a specification.

This invention relates to an improvement in -looms and particularly to looms in. which the shuttles are operated electrically, the object being to provide simple and practical automatic means for operating theshuttle.

in its broadest aspect my present invention is in line with my co-pending application filed August 30, 1909, and serially numbored 515,274l, and in which movement of the shuttle depends on electrical propulsion. However, in my present invention the principle on which the shuttle movement depends is that of electrical repulsion. While, as will be seen this may be accomplished by several metho s, the one which I prefer is the repulsion between'conductors carrying currents in opposite directions, and comprises a transformer containing primary and secondary windings, the latter of which is a portion of or contained in the shuttle which, being free, will be repelled from the transformer because the induced current in it is in the opposite direction to that in the primary.

A. further object of my invention is to operate the swells or shuttle brakes by electromagnetic means,

lln the accompanying drawings, my invention is shown, for the most part in, diagram, for the reason that the loom parts are well. known and are not changed by this invention.

In the drawings, Figure l is diagram.- matic view illustrating my invention, as a whole. Figs. 2 and 3 are elevations of opposite sides of one of the transformers removed. a is a sectional view therethrough, and, Fig. 5 is a detail section through the shuttle. Fig. 6 is a plan view, and Fig.7 1s a side elevation of a. fragment a loom, showing the application of the invention.

Thus, in the practical embodiment of my invention, if provide a shaft 10 which is suitably supported in the loom, and geared to the main shaft to malre say one revolution to every two of said shaft. "Upon 10 an insulated hub it having,

contact rings 12 and 13 provided respectively with inwardly extending and opposinn, contact pieces it and 15 which are insulateol from one another by the material of said hub.

lit the ends of the lay are arranged trans formers 15 and 1c, the one 15- being shown in .Figs. 2, 3 and d, it being understood that both are alike except for being reversed. ilhis transformer comprises a shell 17 which is cut away about the ends of the central core 18 to permit the entrance of the shuttle 19, which shuttle comprises a hollow shell 20, rectangular in with internal bands 21 and 22, adjacent its ends. Within the shelll? of the trans former and about core 18 is vthe primary winding 28, the bands 21 and 22 forming the secondary windings of the transformers when therein.

Wires and 25 lead from the transformer 15 to brushes 26 and 27'respectively contacting with hub 11 at its ring 12 and in the path of its'contact piece 1i, and wire 25 through an alternating current dynamo 28. From the other transformer 16 wires 29 and 30 lead respectively to wire 25 between transformer 15 and dynamo 28, to brush 31 contactingwith hub 11 upon the opposite side thereof to lorush 26 of wire 24, and in line therewith. Thus, when the hub 11 revolves to the right, a circuit will first be completed, as brush 26 contacts piece it, through brush .27, dynamo 28, wire 25, transformer 15 wire 24-, and

contact ring 12, and the shuttle will be repelted from transformer 15 to transformer" Then as the huh continues to revolve,- the contact piece 1% comes into engagement with brush illof wire 80, a circuit is completed through said brush and wire, transformer 16, wire 29*, wire 25, dynamo 28, ring and contact piece whereby the shuttle repelled transformer 16 baclr to transformer 15. Mach of t e ircuits just described is of course r the continued movement of l it before the next one is made, a tinuous eachtiine a r'tdja-c nt eachtransformer is arranged the well loown swell or s e 32 for ti-an orzner l i 'isforrner to, sale swells l toward the ra e ay to e: or it arrives till lltlli hub ring raceway by electromagnets 3% and 35, the former being provided with wires 36 and 37 leading therefrom, and the latter with wires 38 and 39. The wire 36 leads to a brush 40 against hub 11 in the path of contact piece and wire 38 leads to a brush 41 against 13 upon the opposite side of said hub, and said wire 38 leads through a dynamo 42. The wire 37 leads from electromagnet 34 to wire 38 between electromagnet 35 and dynamo 42. while wire 39 leads to a brush 43 against hub 11 in line with brush 40 but upon the oppositeside of said hub thereto. Thus before the circuit is completed through transformer 15 magnet 3a is energized through Wire 36, wire 37, wire 38, dynamo 42, ring 13 and contact piece 15. On the other hand before transformer 16 is placed in circuit, magnet 35 is energized through wire 39, wire 38, dynamo 42, ring 13, and contact piece 15. From this it will be seen that before each transformer is energized its respective swell is withdrawn, whereby the shuttle is thus free to be repelled to the opposite end of the lay.

Figs. 6 and 7 illustrate the application of the invention, a shown. Thelay beam is indicated at 50, at the respective ends of which the transformers 15 and 16 are mounted, said transformers occupying the space usually occupied by the shuttle boxes in looms having a fly motion. The shuttle brakes 32 are located in front of the entrance ends of the transformers as clearly shown in Fig. 6. The shaft 10.

is geared to the shaft 51 which operates the lay beam, a two-toone gearing 52 being provided so that the shaft 10 makes one revolution to every two revolutions of the shaft 51, this gearing being provided in order that fragment of a loom being the closing of the circuits of the respective transformers may be properly timed with relation to the position of the lay beam.

I claim:

1. In a loom, primary respective ends of the shuttle race, a shuttle formed as the secondary of said coils, and means for alternately energizing the primary coils.

2. In a loom, the combination of a shuttle, and means to electrically repel the same from one end of the shuttle race to the other, said means embodying primary coils arranged at the respective ends of the shuttle race, the shuttle being arranged to formthe secondary of the coils when in juxtaposition therewith, gizing the primary coils.

3. In a loom, the combination of a shuttle having conductors in the ends thereof, pricoils located at the mary coils arranged at the respective ends of the shuttle race to receive the shuttle, and means to energize said coils alternately, said shuttle conductors forming the secondary of the aforesaid coils when located therein.

l. In a loom, the combination of a shuttle, primary coils arranged at the respective ends of the shuttle race, said shuttle being arranged to form the secondary of the coils, electrically controlled swells for the shuttle, and means to energize the primary coils alternately and simultaneously therewith to actuate the corresponding swell.

In testimony whereof I affix my signature, in presence oft-wo witnesses.

GEORGE G. onownn.

Witnesses:

FREDERICK M. MCCARTHY, Ausrm P. KIRKHAM.

and means for alternately ener-- 

